EDITED BY HOUSTON, M. Twentieth Annual Saskatchewan Christmas Bird Count, 1961. Blue Jay, [S. l.], v. 20, n. 1, 1962. DOI: 10.29173/bluejay2747. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/2747. Acesso em: 17 may. 2024.